Molder&#39;s flask



April 26, 1932. M. J. KUNERT MOLDERS FLASK Famedl Dec.

g Patented Apr. 26,1932

g DELAWARE l'lhis invention relates to foundry*pragaUv tice, andmor'eiparticularly to the construe-u` y A f pr-,Fheidiag It is an object of the invention to provide a light rigid metal-flask which iS? easily handled and Vis not apt tobecome `brolen deto" rongh usage. It is a further objectv ofthe invention to provide integral handlesv orluo tion of a ask-to be used' in moldingy` membersv carrying Vflask. aligning' ineans and which handles are readily'grasped to'svepa#l rate thefl'askandtopiclrthe flask members Y y g I .v ripheralrib 1,4'1in"retainingfthe'sandinjtheg;k ffoidandwithjthe @named flange 15 ,in pro# Trotngfa ri'gidreotangnlarflaskil1 j f off thfemo-lding board.

4VItis also an ob] ect ofthefinvention to pro#V vide flask aligning meanswhichmay begreadfl ily replaced vvhen worn so that askmembers s may b e' retained in correctalignment. Y

In acconrlplsh'v 'gthese and other objects of the-invention, I'jhave provided improved details of structurafthe preferred forms of,"

which vare illustrated in the accompanying drawings,whe rein:` 'y m f Fig. 1 is a perspectiveviewofthe-Hasi; in which the cope and dragare separated.`

y Fig. 2 is a longitudinal vertical 'section' through the centerfof theflask,partic ularly v y n. y 20ml'. Portion 21 1 Si preferably; Offset" as at illustrating the handle construction. v Fig. 3 is Va detail perspective'view/of one Of the handles. L Q Fig. 4 is afragmentary' sectionalfview of a modified :t'orrni` of viiask whereinfboth the opper and ylower ia-nges vare turned in to-pro-` vide anadditionalgsand lock. y

g Referring to the/drawings,mjlwilii iik@ numerals `indicate like yparts, throughotjthe several views,"the `flask comprises fa cope which maybe generally designated as', and a` drag which may be generally designated as 6. The cope is preferably formed of pressed steel and comprises a rectangular wall portion 7 having one or more inwardly extending` peripheral ribs 8 forming sand locks to retain the moldingsand. As shown in'Fig. 2,

the mating face of the cope between -thecope and the drag is turned inwardly, as at 9,'t0

form an inturned `flange 10 and the opposite edge of the wall is turned outwardly, as in-f` dicated at 11, to form an outturnedilange 12.Y The flange 1() cooperates with the peripheralA f indentation 10 in stii'ening the walls of the 7;

AMAX zr. KUNERT,forxnnsnsfcrrY,mssoimr,-Assignor@.rojisLAcx-srynnpsfa intr son-l l mnnrncfrnmnefcomrnnr, or rir-nivsns .crjrY, Y mssonnrin' conrorm'rron org` illlll'ned iiiange'f cooperates with'fthej peas best iuu'stratedjin nigga; to `provide@flat im vertical #attaching portion V 18; a horizontally extending portion 15) termi.nating'ina,`v vertical end portion 2Q, and l a horizontall portion 21 f 'Han'dlesforV` pin; lugs whichmayf gener! having end 22 terminating! in alignment with the attaching portion 118i Af The' horii 28to provide a finger gripping portion Mbywhich the ila/sl; members 'maybelifted Afrom y j the boardin-the molding operation.`

flange portions 10 and-*13 the moldingV bo 'the Basri mrites falls ofthej-Hask membersadjacentthe i 'Y y in alignment therewith. The vopening in the bushin 27 in one side of the cope is preferably o `oval shapevha'ving its longer diameter extending longitudinally of the flask to compensate for expansion or. contraction between the cope andthedrag so that-they mayf be readily separated.' V'Ihe pins 29 and 30 are provided with re duced-'shank "pautas-e1 tei-frmesiiouiders 32 and the handle-members oftheldrag are provided with aligning openings 33 and 34 to receive the Shanks. The ends of "the Shanks proj ect through the handlesv andare f threaded toA receive nuts-'Bobyi'which 'the' p insareretained in position.

Y The pin'3`0`ard vthe openinginthebushing 23 are -preferablylarger thanthe otherp-in f and opening so that Vit Vis impossible'to close y bushings become l'vvor11 they may be readily removing the nuts which retain the pins after 'v which newfparts' may be readily inserted. f

removed byY pressing out the old bushings and In'Fig. l is illustrated aniodiiedform of V flask wherein both" fthe upper and lower` langesl36a and 3T are turned inwardly` tov co4 operate .with they rib 8L .for retaining the sand, otherwise the'. flask is identical Y to the one previously describedl what i' daim andiaesiie yto ,secure byV Let- 1;Aflask Iincluding-a cope* and a drag, handle members on saideope and saidv drag having ,spaced horizontal portions provided with aligningV apertures,v apin. kvhaving a threaded shankportion received in the apertures ofone ofthe handle members a nut threaded on Vthe shankto retainl the pin, andv a bushing received in*the kapertures of the other handle .member and. having an felongated lopening toreceive saidlpin vand compcontraction be-y pensate for expansion" and tweensaid cope'land'fdrag. L Y y N 2.*-A askfincluding acope and a drag,

handle membersonsaid .cope 1and said drag 1 having spacedhorizontal .portionsprovided with 'aligning apertures, 'aj shouldered pin havinga threaded shankA portionreceive'd in .the apertures Yof one of thehand-le members A avnut threaded :on the shank to retainthe-pin It is thusapparentthat whenthe'pinsor ber tore'ceivefthepinll yhandle against pressure applied to said finger grip.

4.In a Vflask including a cope and a drag,

handlemembers on the cope and drag, each including a stripbent to provide spaced parallelf attacizhing4 portions.j having aligning apertures and having a connecting portion providedy with an inset to form a linger grip etween said spaced 'portionslland interenzi Y gaging 'means 'ext'ending through'.- the spaced portions of the 'respectivel handles' 5to.prey vvent?spreading of said spaced portionsV and .no align the @with the drag.

Inaiaskincluding a cope and a drag, handle members on the cope andtdrag'peach including a stripbentto' provdefspaced parallel attaching portions `having aligning apertures and having a connecting portion provided with an inset to form a'inger grip between said spaced portions, a' shouldered pin extendingthrough ,the Vapertures of one of the .handle members, vmeans onthe pin for' retainingfthe pin in said apertures and' to prevent spreading of saidfspa'ced portions,

and abushing pressedV into the apertures ofl the other handleineniberfto receive the pin.

6. In a flask including ai cope 4and a drag;-

handle members onthe cope all`d`drag,"eac

including afstrip bent toprovide spacedparf allel Yattaching `portions having aligning; .apertures and va portion-connecting said spacedlportionsa shouldered pinezgtendingv7, Inahask of the character described, a handlemember frIfIledo pressed metal and comprising 4s'pafzed horizontal portions, vertical Vportion connecting-- theV ends vof' said horizontal portions and Ahaving an offset to` form a flr'igerfgrip'j,V andky alaterally 'directed flalrlgeatthe Oppositefendof one oflsaidhorizontalY portions to brace Athe handle member against pressure applied fto Vsaid finger grip.

"Inftestiinony whereof I 4'a'iiixmiysignature.

and prevent spreading ofthe horizontal pori i" i* i "i Vtions lof'the"handlemembers, and a bushing l lpressed in the apertures of the vother handle 551nember and havingan elongated opening to a recevesaid pin and compensate' for expansionandpcontraction between said copefV and f' other of saidhQr'iZont-Ial portions havinga d.

lateral attaching' flange `for fbracing a the drag.

pressed metal and comprising spaced hori- Y )66p 3; In 'ai moldlaskja handlev `formed of z.ontalportions connected. by yazve'rtical por-vtion, oneof said r"horiziontalportions having an ofsetto provide jagfingerwgrip and the i i I l sal 

